Fig. 4.

Correlations among Se, seed germination parameters, total biomass, antioxidant enzyme activities, peroxidation products, and chlorophyll fluorescence parameters under exposure to salt stress. Edges between nodes indicate positive and negative correlations (green and red lines, respectively). All correlations were significant (P < 0.05) in the network. Se selenium, GR seed germination rate, GI Germination index, GE Germination energy, NPQ non-photochemical quenching, Y(II) photochemical quantum yield, Fo minimal fluorescence yield, Fv variable fluorescence, Fv/Fm maximal PSII photochemical efficiency, Fm maximal fluorescence yield, Fv/Fo potential efficiency of PSII, PSII photosystem II, MDA malondialdehyde, CAT catalase, SOD superoxide dismutase, POD peroxidase